xpertrat | f91cf396d6cc0e3803aa25fd0770e9a252196ae616e032e4880668c8ded74dc0

General

Target

GUM.exe
Size

172KB
MD5

81912e3dd162ce7c96114a84d0d58b29
SHA1

2def8b1c48c9e550f57c9dab915c5232a7113d57
SHA256

f91cf396d6cc0e3803aa25fd0770e9a252196ae616e032e4880668c8ded74dc0
SHA512

893b3c4483d0a307cad24c73fce27bc4e02438439fc5b07d596146bdb92767e53e60642ff6264ce80891b10c0a7f2a3f5b397560a47ee6e1244d6e5e9a80f341

Score

10^/10

xpertrat collection evasion persistence rat trojan

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

GUM.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" GUM.exe
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

GUM.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" GUM.exe
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	GUM.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	GUM.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4.exe"	iexplore.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Processes:

GUM.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" GUM.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	GUM.exe

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

Processes:

iexplore.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	iexplore.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

iexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4.exe"	iexplore.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4 = "C:\\Users\\Admin\\AppData\\Roaming\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

GUM.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" GUM.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	GUM.exe

Suspicious use of SetThreadContext 6 IoCs

Processes:

GUM.exeiexplore.exe

description	pid	process	target process
PID 3864 set thread context of 4156	3864	GUM.exe	iexplore.exe
PID 4156 set thread context of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 set thread context of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 set thread context of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 set thread context of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 set thread context of 688	4156	iexplore.exe	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

GUM.exeiexplore.exeiexplore.exe

pid process

3864 GUM.exe
3864 GUM.exe
3864 GUM.exe
3864 GUM.exe
3932 iexplore.exe
3932 iexplore.exe
4584 iexplore.exe
4584 iexplore.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

iexplore.exeiexplore.exe

description pid process

Token: SeDebugPrivilege 4156 iexplore.exe
Token: SeDebugPrivilege 3932 iexplore.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

GUM.exeiexplore.exe

pid process

3864 GUM.exe
4156 iexplore.exe

pid	process
3864	GUM.exe
3864	GUM.exe
3864	GUM.exe
3864	GUM.exe
3932	iexplore.exe
3932	iexplore.exe
4584	iexplore.exe
4584	iexplore.exe

description	pid	process
Token: SeDebugPrivilege	4156	iexplore.exe
Token: SeDebugPrivilege	3932	iexplore.exe

pid	process
3864	GUM.exe
4156	iexplore.exe

Suspicious use of WriteProcessMemory 51 IoCs

Processes:

GUM.exeiexplore.exe

description	pid	process	target process
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 3864 wrote to memory of 4156	3864	GUM.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 3932	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4552	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 4584	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 2800	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe
PID 4156 wrote to memory of 688	4156	iexplore.exe	iexplore.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

GUM.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" GUM.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	GUM.exe

C:\Users\Admin\AppData\Local\Temp\GUM.exe
"C:\Users\Admin\AppData\Local\Temp\GUM.exe"
1⤵
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:3864

C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\GUM.exe
2⤵
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4156

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw0.txt"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3932

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw1.txt"
3⤵
- Accesses Microsoft Outlook accounts
PID:4552

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw2.txt"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:4584

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw3.txt"
3⤵
PID:2800

C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw4.txt"
3⤵
PID:688

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Bypass User Account Control

1

T1088

Defense Evasion

Bypass User Account Control

1

T1088

Disabling Security Tools

3

T1089

Modify Registry

6

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw2.txt
Filesize
3KB

MD5
f94dc819ca773f1e3cb27abbc9e7fa27

SHA1
9a7700efadc5ea09ab288544ef1e3cd876255086

SHA256
a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

SHA512
72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

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C:\Users\Admin\AppData\Roaming\Y1F5W2I0-W6V4-G5S1-T8J1-U5Y8L0K337W4\wkwqnggcw4.txt
Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads